<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <button>按钮</button>
    <input type="text">
    <script>
        const bun = document.querySelector('button')
        bun.addEventListener('click', e => {
            console.log(e.key);
        })
        const inp = document.querySelector('input')
        inp.addEventListener('keyup', e => {
            if (e.key === 'Enter') {
                console.log('我点击了Enter');
            }
        })
    </script>
</body>

</html>